CATALOGUE. 107 



half an inch long or often more : spikes cylindrical, usually dense, shortly 

 pedunculate, 2 to 4 inches long, 1-3-fruited : flowers a line long : pods 4 to 

 6 inches long or more, stipitate, straight or curved, narrow, flat, at length 

 thickened and pulpy within. — From Texas to Southern California and south- 

 ward to Chili and Brazil; at Ash Meadows, Southern Nevada, in 1871, and 

 in the Gila Valley, Rothrock (320). 



Prosopis pubescens, Benth. (Lond. Journ. Bot. v, 82). (Strombo- 

 carpus pubescens, Cray.) — New Mexico to Southern California; at Ash 

 Meadows, Southern Nevada, 1872. 



Desmanthus Jamesii, Torr. & Gray (Fl. i, 402). — Slightly puberu- 

 lent, erect or decumbent, a foot high or less : pinnse 3 to 6 pairs, the 

 lowest approximate to the stem; leaflets 8 to 13 pairs, oblong, acutish, not 

 veined, 2 lines long or less ; gland large, oblong; stipules very small: heads 

 large, 3 or 4 lines in diameter without the stamens, on peduncles an 

 inch in length or often much less : pods linear, straight or nearly so, 

 3 or 4 inches long, obtuse or acute, 12-16-seeded. — Var. (?) F^ndleei, 

 with smaller fewer-flowered heads, and the thick pods 2 inches long 

 or more, and usually 8-12-seeded. — From Arkansas and New Mexico 

 westward; at Cooley's Ranch and Camp Apache, Ariz., Loew (1116) 

 and Rothrock (255), and the variety at Rocky Canon, Ariz., Rothrock (291), 

 and Canon del Diablo (192); the last referred doubtfully in the catalogue 

 to D. velutinus. This variety is identical with 1 79 Fendler and 1 69 Wright, 

 considered by Dr. Gray (PI. Wright, i, 63) to be a form of D. Jamesii, but 

 placed rather under JD. reticulatus by Bentham (Rev. Mim.). The earlier 

 reference appears to be the better. 



Mimosa* biuncifera, Benth (PI. Hartw. 12).— A shrub 6 feet high, 

 puberulent, with a pair of short stout recurved prickles below each leaf: 

 pinnae 4 to 7 pairs ; leaflets 10 to 15 pairs, narrowly oblong, obtuse, a line 

 long or less ; stipules setaceous ; occasionally very small prickles upon the 



* Mimosa, Linn. — Flowers perfect or polygamous. Calyx mostly minute, rarely campanulate, 

 shortly toothed. Petals connate, valvate. Stamens as many or twice as many as the petals, distinct, 

 exserted; pollen-grains numerous. Style filiform. Pod oblong or linear, membranaceous or coriaceous, 

 compressed, the 2 valves at length separating from the persistent margin. — Herbs or shrubs, often armed ; 

 leaves bipinnate, the petioles without glands and the pinna? stipellate ; flowers small, sessile in globose 

 or cylindrical spikes, on solitary or fascicled axillary peduncles, or the uppermost racemose. — Benth. & 

 Hook. Gen. PI. i, 593. 



